Senior Full Stack Engineer

We’re building the core platform that powers internal communications at scale, helping organizations connect with their employees efficiently, reliably, and with content that truly matters.

To achieve this, we’re looking for a Senior Full Stack Engineer who’s passionate about crafting seamless experiences end‑to‑end – from intuitive user interfaces to robust backend integrations. You’ll play a key role in shaping the future of our platform and ensuring it performs flawlessly for thousands of users every day. Join us and help build the platform that empowers internal communicators to reach every employee with the right message at the right time.

Haiilo is a 360° Employee Communications Platform that strengthens cohesion, motivation, and culture in organizations. With more than 1,000 international clients such as Coca Cola, EY, Deutsche Bahn and Deutsche Telekom, we’re one of the largest global providers of employee communications software for companies to reach, engage, and understand more than 3.5 million employees every day.

Who We’re Looking For

• 7+ years of experience with Angular and 5+ years with Java Spring Boot, especially in reactive programming
• Strong understanding of microservices architecture, REST APIs, and asynchronous communication (RabbitMQ or similar)
• Hands‑on experience with cloud environments (GCP preferred) and containerised deployments (Docker, Kubernetes)
• Proven ability to deliver end‑to‑end features that are intuitive, scalable, and maintainable
• A proactive mindset: you take ownership, communicate clearly, and raise blockers early

We encourage you to apply even if your profile does not yet meet all the requirements for the position. At Haiilo we support your personal development as well as your individuality, no matter what background you have.

What You’ll Do

• Design, implement, and maintain key frontend features (Angular) integrated with backend microservices (Spring Boot, Java)
• Deliver product work from concept to deployment, ensuring quality and performance
• Collaborate closely with developers, designers, QA, and product managers to ensure smooth delivery
• Maintain CI/CD pipelines and monitor production stability for team‑owned features
• Provide technical mentorship, participate in reviews, and ensure architectural consistency
• Proactively identify technical risks, performance bottlenecks, and opportunities for simplification

What We Offer

• Flexibility & Teamwork: Hybrid work, at least one in‑office day per week
• Company Vibe: Regular team socials, themed afterworks, in‑person workshops, and an annual company week in Hamburg
• Growth: Personal and professional development, workshops, training support, conferences, books, and access to external learning resources
• Time off: Up to 30 vacation days plus 2 annual company‑wide self‑care days
• Health & wellbeing: Health insurance, sports membership discounts, and access to Nilo.health
• Sustainability: Carbon‑neutral operations, sustainable merchandise, and discounts for sustainable brands through FutureBen
• Diversity & inclusion: Commitment to a diverse and inclusive environment, celebrating different backgrounds and perspectives

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